The earths gravity pulls on the moon and keeps it in its orbit. the moons gravity will then___.?

a pull on smaller objects such as astroids but has no effect on the earth

b pull back on earth

c push the moon away from the earth

d affect nothing

The fastest growing source of energy in the world is wind power. a. true b. false

A ray of light passes from air into water with an angle of incidence of 30 o. Which of the following quantities does not change as the light enters the water ... a) Wavelength b) frequency c) speed of propagation d) direction of propagation.

Mechanical energy is the energy due to the _ and _ of an object. the choices are Size, volume, motions, surface area, density, and position.

If a meter stick moves to your right at a constant velocity of 0.8 c, what would you measure its length to be

A wire and a 10 ohm resistor are used to forma circuit in the shape of a square, 20 cm by 20 cm. A uniform butnon-steady magnetic field is directed into the plane of thecircuit. The magnitude of the magnetic field is decreased from 2.70T to 0.

Which action will slow down the rate of a reaction

You are racing your dog next to a football field. You run from the 10 yard line to the 50 yard line, then turn around and run back to the 30 yard line. What is your distance? What is your displacement?

Which of the following statements about degeneracy pressure is not true? a) Black holes form when gravity overcomes neutron degeneracy pressure. b) Degeneracy pressure arises from a quantum mechanical effect that we don't notice in our daily lives.

A bar magnet and a second object are hung from metal rods. The diagram below shows what happens when both objects are released.

Which measurement below has three significant figures? A. 12,300 lbs B. 12.02 m C. 0.2004 g D. 0.018 km